Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer

Burrard-Lucas, Maththew; Free, David G.; Sedlmaier, Stefan J.; Wright, Jack D.; Cassidy, Simon J.; Hara, Yoshiaki; Corkett, Alex J.; Lancaster, Tom; Baker, Peter J.; Blundell, Stephen J.; Clarke, Simon J.

doi:10.1038/nmat3464

Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer

Burrard-Lucas, Maththew; Free, David G.; Sedlmaier, Stefan J.; Wright, Jack D.; Cassidy, Simon J.; Hara, Yoshiaki; Corkett, Alex J.; Lancaster, Tom; Baker, Peter J.; Blundell, Stephen J.; Clarke, Simon J.

Authors

Maththew Burrard-Lucas

David G. Free

Stefan J. Sedlmaier

Jack D. Wright

Simon J. Cassidy

Yoshiaki Hara

Alex J. Corkett

Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor

Peter J. Baker

Stephen J. Blundell

Simon J. Clarke

Abstract

The discovery of high-temperature superconductivity in a layered iron arsenide1 has led to an intensive search to optimize the superconducting properties of iron-based superconductors by changing the chemical composition of the spacer layer between adjacent anionic iron arsenide layers2–7. Superconductivity has been found in iron arsenides with cationic spacer layers consisting of metal ions (for example, LiC, NaC, KC, Ba2C) or PbO- or perovskite-type oxide layers, and also in Fe1:01Se (ref. 8) with neutral layers similar in structure to those found in the iron arsenides and no spacer layer. Here we demonstrate the synthesis of Lix(NH2)y(NH3)1

Citation

Burrard-Lucas, M., Free, D. G., Sedlmaier, S. J., Wright, J. D., Cassidy, S. J., Hara, Y., …Clarke, S. J. (2013). Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer. Nature Materials, 12(1), 15-19. https://doi.org/10.1038/nmat3464

Journal Article Type	Article
Publication Date	Jan 1, 2013
Deposit Date	Nov 5, 2012
Publicly Available Date	Feb 6, 2014
Journal	Nature Materials
Print ISSN	1476-1122
Electronic ISSN	1476-4660
Publisher	Nature Research
Peer Reviewed	Peer Reviewed
Volume	12
Issue	1
Pages	15-19
DOI	https://doi.org/10.1038/nmat3464
Keywords	Superconductors.